Of course, you already have experience in this issue. In how the dynamic takes place. It means you have information. Is it gonna to ensure you that you won’t fall again in the same mistake (in case it may be a mistake- I’m talking from what I’ve read here)? No. Sure you are gonna make decisions that may not be the best. Each one of us, make it.
The only way you may have an option to choose is when you are aware of something but also it’s needed you are ready to make this choice. So, it’s not so easy as we may think from the outside.

Only I see that blaming yourself is not FAIR.
Have you ever tried techniques of mindfulness of compassion?
I used to blame myself for everything. Felt shame. Even when people were mean with me. Doesn’t it sound absurd? I began to practise mindfulness. It’s a way to connect with yourself. Perceiving yourself without any blindfold and it helps to perceive others better.